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Home My WebLink AboutSWP272710(2) (2) 1 1 i i Abbreviated Surface Water Technical Information Report 1 95 % Submittal 1 1 1 fo r 1 Oakesdale Avenue S. W. Extension - Phase IA S. W. 2 nth Street to S. W. 16th Street 1 Presented to: 1 City of Renton Planning/Building/Public Works 1 Presented by: Kato & Warren, Inc. September 1997 Oakesdale Avenue S.W. Extension Phase IA S.W. 27th Street to S.W. 16th Street 95% SUBMITTAL ABBREVIATED SURFACE WATER TECHNICAL INFORMATION REPORT September, 1997 Prepared b : Kato & Warren Inc. P Y , ' Prepared for: City of Renton PlanningBuilding/Public Works Contributing Kato & Warren Staff: Richard E. Warren, P.E., Principal ' Shawn S. Summersett, P.E.,Civil Engineer Kirk R. Smith, P.E., Civil Engineer Contributing City of Renton Staff- S. Scott Woodbury, P.E., Civil Engineer Ron Shaffer, Maintenance Address: City of Renton Planning/Building/Public Works 200 Mill Avenue South Renton, Washington 98055 425-235-2631 Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. City of Renton 1 TABLE OF CONTENTS 1 Page No. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ' OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DESIGN REQUIREMENT SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 City of Renton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Washington State Department of Fish and Wildlife . . . . . . . . . . . . . . . . . . . . . . 1 Washington State Department of Ecology . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ' EXISTING DRAINAGE SYSTEM AND PROBLEMS . . . . . . . . . . . . . . . . . . . . . . . . 2 ' PROPOSED DRAINAGE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Comments for All Site Drainage Basins . . . . . . . . . . . . . . . . . . . . . . . . 3 Basin 1 - Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ' Basin 1 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Basin 2 - Southerly Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Basin 2 - Northerly Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Basin 2 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Basin 3 - Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ' Basin 3 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 APPENDICES Appendix A - Mitigation Calculations Appendix B - Conveyance Calculations r Kato & Warren, Inc. i September, 1997 ' Oakesdale Avenue S.W. Extension - Phase 1A 95% Abbreviated S.W.T.I.R. City of Renton INTRODUCTION ' The purpose of this A � Surface Water Technical Information Report is to document the design requirements, exceptions, methodology and calculations for the surface water design elements of the Oakesdale Avenue S.W. Extension project. OVERVIEW The project is located primarily west of Springbrook Creek with a small portion cated east of the ' Creek. Project runoff is tributary to Springbrook Creek via y<adjoining wetlands, which flows to the Duwamish River before entering Puget Sound at Elliott Bay. The Phase 1 project will increase the impervious area from an essentially undeveloped site with no impervious area to 7.07 acres of ' impervious pavement and sidewalks. The proposed road travels through predominantly developing commercial areas on level, grassland terrain. In addition to the Creek, oth sensitive areas exist on site. Several wetlands are adjacent to, or within, the project right-of-way. The project drains to these adjacent wetlands, of which Wetland D is a closed depression. The project is also within, or adjacent to FEMA floodplain . Slopes of greater than 30% exist adjacent to the creek. , �11 DESIGN REQUIREMENT SUMMARY Surface water conveyance and mitigation facilities are designed to meet or exceed the requirements outlined by the following agencies: ' City of Renton: The drainage system, including convey and surface water mitigation elements, is designed to meet or exceed requirements outlined in the ng County Surface Water Design Manual (1990 KCSWDM) adopted by the City of Renton Storm an urface Water Drainage Ordinance. Water-quality ponds have been enlarged to provide a minim of 150% of the dead storage volume and surface area required by the 1990 KCSWDM. Tailwater elevations used for the conveyance system backwater analysis were established by the higher of the S i �100-yr storage event or the water- quality facility water-surface elevation. 1*e)4Cd i;'7 r A4 Ns-', ' Washington State Department of Fish and Wildlife: (drainage-related requirements/ recommendations were set forth in a letter to Gregg Zimmerman from Philip Schneider dated May 6, 1997) 4_43t ca6-41 1. An HPA Permit will be obtained for outfalls and for discharge to Springbrook Creek. 2. All discharge meets or exceeds requirements of the WSDOE Stormwater Management Manual for the Puget Sound Basin. Kato & Warren, Inc. 1 September, 1997 Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. , City of Renton 3. Where land use will accommodate, wetponds are proposed rather than wet vaults for ' maintenance reliability,�reasons. Cf 0 H-t r Washington State Department of Ecology: (drainage related requirements/recommendations were set forth in a letter to Robert Mahn from Rebecca Inman dated May 2, 1997) 1. Drainage design addresses both individual and cumulative impacts to existing flooding, , infiltration and water-quality problems by coordinating mitigation efforts with other development proposals in the area (e.g., the East Side Green River Watershed Study and , adjacent development proposals). 2. Springbrook Creek (WRIA #WA-09-1015, Class A Waters of the State) is on the current 303(d) list of water bodies exceeding state water-quality standards. The specific standards , exceeded include fecal coliform, temperature, dissolved oxygen, sediment bioassay, cadmium, copper, mercury and zinc. Mitigation facilities e designed beyond standard requirements to ensure that state water-quality standard in Springbrook Creek are not further degraded. 41r ttx 'o°)-°7 r'°� ► A� (.. �Le ' 3. Stormwater discharges to wetlands are anticipated to either meet state water-quality standards, or through mitigation sequencing, the impacts of such discharges are avoided, minimized, or mitigated by the proposed wetland mitigation plan. 4. Floodway and water-quality mitigation has been integrated as recommended. EXISTING DRAINAGE SYSTEM AND PROBLEMS The project site is relatively undeveloped and therefore existing man-made drainage features are P J Y P g g primarily associated with off-site private development. Off-site runoff approaches the project , primarily from the west. Boeing's BCAG site has several existing drainage courses that convey runoff in an easterly direction across the project corridor and on to Springbrook Creek. These drainage features include: an existing 12" concrete outfall pipe near Sta. ' 26+30; an existing 12" concrete outfall pipe near Sta. 30+08; and an existing -365EMP inlet pipe near Sta. 37+30 which is reported by a Sverdrup engineer(Kevin Bowen)to have een abandoned and filled with controlled-density fill during recent Boeing construction activities. Boeing's new ' CSTC Building site has an existing 48" ductile iron culvert crossing the project in an easterly direction near Sta. 43+00 to drain an open detention/treatment/wetland facility. Runoff from the project site generally sheet flows easterly to wetlands and drainage courses tributary to Springbrook Creek. Besides flooding problems associated with the floodplain in the area, exceedence of State Water-Quality Standards, erosion in Springbrook Creek, and proximity to the , closed depression at Wetland D, no other existing flooding or drainage problems have been unearthed during the resource review process. Kato & Warren, Inc. 2 September, 1997 ' Oakesdale Avenue S.W. Extension - Phase 1A 95% Abbreviated S.W.T.I.R. City of Renton PROPOSED DRAINAGE SYSTEM lit4=4*se-d-drainage system is substantially-ems-from the systemproposed by KNTB in-their April-1997--Design Report. Relatively little hydrattlt"ead between the proposed roadway grade and outfall elevations_makes peak-rate runoff control7purtds-difficult to site efficiently. For less cost, construcled__wetlands and dead storage in-water=fluatit mds-;"l1-pw .a-superi L-Ieue1 of pe -rate runo con nds and w d � e proposed stormwater conveyance ' and mitigation systems aliawill be constructed as described below. General Comments for All Site Drainage Basins: Conveyance and mitigation features are ' designed to safely pass the 100-yr storm event. Backwater analysis shows that catch basins will not overtop for storm events less than, or equal to, the 100-yr storm event. In anticipation of tree planting along the boulevard, open-curb-face inlets are being utilized on the project to facilitate runoff capture during autumn months. A minimum pipe cover of two feet has been maintained between the conveyance system and the roadway finished grade except as noted below. As requested by the City, catch basins are spaced at approximately 150 or 200 lineal feet depending ' on road grades. The project has been broken into three basins to accommodate surface water mitigation facility siting. The following narrative describes the proposed drainage system in each basin. ' BASIN 1 - Sta. 15+00 to Sta. 20+25 After Phase 1 and Phase 2 construction, on-site surface water runoff will be conveyed in curb ' and gutter systems to catch basins and a closed trunk conveyance system parallel to the road and outfalling to a newly-constructed water-quality pond and constructed wetland. ' Conveyance System: The conveyance system is constrained on the west side of the alignment by an existing 12" diameter watermain. Proximity to the watermain requires that the trunk conveyance main be placed on the east side of the road and concrete inlets are required near the watermain in ' places. The conveyance system is further constrained by the limited available fall to the 100-yr downstream tailwater elevation of 13.91 feet set by the water-quality pond outfall culvert. -1 4-- avnitabtL--fal1mnd pipe cover requirements-forces-•conveyance system gradients below--st=rdard - The conveyance system outfall pipe will be submerged during wet periods when the water-quality pond dead storage is full, but the road system is set entirely above the water-quality pond dead storage elevation of 13.60 feet. Submerged discharge was selected in accordance with ' the Draft 1996 King County Surface Water Design Manual (1996 KCSWDM) to enhance tranquil discharge of runoff into the pond. Limited pipe cover requires the use of ductile iron pipe in low ' areas of the basin. The conveyance system passes through a 72" diameter Type 2 Catch Basin with a baffle which provides oil spill containment and captures floatable material prior to discharge to the water-quality pond. Kato & Warren, Inc. 3 September, 1997 Oakesdale Avenue S.W. Extension - Phase 1A 95% Abbreviated S.W.T.I.R. , City of Renton The conveyance and mitigation features have been over-sized to accommodate the future extension ' of Oakesdale south of S.W. 27th Street (Phase 2) and the completion of the 5 lane road section between Sta. 15+00 and Sta. 20.25 (Phase 1 B). All catch basin frames will be installed to ultimate ' finish grades. The ultimate proposed rim elevations of the three eastern Type 1 catch basins north of Sta. 16+00 are within 8 inches of existing grades and can, therefore, be constructed to finished grades during Phase IA construction. Where noted on the plans, standard frames will be ' temporarily installed to be later replaced by open-curb-face frames during Phase 2 and Phase 1 B curb and gutter construction. The ultimate 2.1 acre impervious site yields a 100-yr rational method flowrate of 4.60 cfs. Calculations can be found in the appendix. ' The existing inlets with small diameter outlet drains near S.W. 27th Street and Sta. 17+00 are to be removed from the right-of-way as the road system will capture runoff in the area after construction. ' Mitigation System: The water-quality pond is designed to meet or exceed requirements outlined in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found ' in the appendix. VOLUME SURFACE AREA LENGTH TO WIDTH RATIO REQUIRED 8,725 c.f. 993 s.f. 3:1 ' AVAILABLE >32,000 c.f. >12,800 s.f. >6:1 EXCEDENT >350% >1,200% >200% ' It is not necessary to divide the pond into cells since the length-to-width ratio is >4:1 (1996 KCSWDM). It is also not necessary to bypass storm events greater than the water-quality design ' storm (1996 KCSWDM). A sediment storage space is not provided at the conveyance system outfall to the pond due to the close proximity of the pond access road and generous over-sizing of the pond. A pond liner is not anticipated due to poor permeability of local soils. A gravity , drain for the pond is not required (1996 KCSWDM). The pond outfall culvert will pass storm events up to and including the 100-yr storm event. Should the culvert become blocked, the pond , will overflow safely in the northerly and easterly directions into the wetland. Access to the pond is limited by the absence of a traditional curb cut. Maintenance crews will access the pond by either driving over the curb directly or by a temporary ramp. The dispersal v-ditch has been ' located further east than shown in previous submittals to avoid stands of existing trees. For Phase IA construction, the entire mitigation system will be constructed in accordance with the ultimate Phase 1/Phase 2 concept. , Cover requirements over the fuel/oil mains near Sta. 20+50 prevents the expansion of the constructed wetland northward to Sta. 26+00 to form one contiguous constructed wetland with ' the basin to the north. A broad channel is to be graded over the fuel lines providing a hydraulic link between the constructed wetlands located north and south of the fuel lines. Kato & Warren, Inc. 4 September, 1997 ' Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. City of Renton BASIN 2 - Sta. 20+25 to Sta. 48+40 The Phase 1 conveyance system in this basin is divided by the location of the water-quality pond into a northerly and southerly conveyance zone. The southerly conveyance zone is between Sta. 20+25 and Sta. 25+50 and the northerly conveyance zone is between Sta. 25+50 and Sta. 48+40. ' For both conveyance zones, on-site surface water runoff will be conveyed in curb and gutter systems to catch basins and a closed trunk conveyance system parallel to the road and outfalling to a newly-constructed water-quality pond and constructed wetland. Southerly Conveyance System: Installation of the trunk conveyance main on the west side of the alignment avoids construction above, and parallel to, the 108" and 72" diameter sanitary sewer mains. It is anticipated that the watermain running parallel to the Oakesdale alignment between Sta. 20+90 and Sta. 28+35 is, or will be, abandoned and will not present separation conflicts. The conveyance system outfall pipe will be submerged during wet periods when the water-quality pond dead storage is full,but the southerly conveyance system is set entirely above the water-quality pond dead storage elevation of 11.50 feet. Submerged discharge was selected in accordance with the 1996 ' KCSWDM to enhance tranquil discharge of runoff into the pond. The conveyance system passes through a 72" diameter Type 2 Catch Basin with a baffle which provides oil spill containment and captures floatable material prior to discharge to the water-quality pond. ' A shallow ditch is to be cut behind the proposed sidewalk from Sta. 23+50 to Sta. 25+80 Lt. to drain an area which would otherwise pond against the road embankment at an elevation which ' may compromise the pavement section. The 6" diameter PVC culvert under an existing dirt road just west of the right-of-way near Sta. 25+50 is to be removed as it is no longer needed. ' Northerly Conveyance System: Superelevation forces runoff to the east gutter between Sta. 48+40 and Sta. 43+60 requiring catch basins on the east side of the road only. T-14a Uunk }Ie-S�SJ7"� -curVe-ar-Sta., �iillV � b V Y.LU U 1111111111 U111J VLIVY t\.all 1 ' -Seattle-fit iarneter-C-edar-Kiiver-PiWine . To maximize gradient, pipe cover has been reduced to 12" at the sag vertical curve and ductile iron pipe materials are used in areas with less than 2 feet of pipe cover. The trunk ' conveyance main crosses to the west side of Oakesdale at S.W. 19th Street to avoid storm sewer construction above, and parallel to, the 108" and 72" diameter sanitary sewer mains between this inter ection and the outfall. ere sh6 -on the plans, it is proposed to use Type 1 CafA7'1 ' asins rather than Type 1L Catch Basins for 18" diameter ductile iron pipe (1996 KCSWDM). f- ----- _- --- --- weal i�y�t The-BoeingCompany is currently constructing a number of utilities within the -af way between Sta. 36+ ta. 45+00. Since Boeings utilities will bd� prior to Oakesdale �, . elements, Boeings current prop tility plan has1iomwn as part of the existing basemap features in the drainage plan and profits e Oakesdale 95% Design Submittal. It has ' been noted that as designed,xhe-proposed watermain para Oakesdale between Sta. 37+00 and Sta. 40+25 _does not provide the desired 10 foot horizontal separa ' tween water and ' Oakesd orm sewer utilities. It has also been noted that as designed, the proposed i ant Kato & Warren, Inc. 5 September, 1997 Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. , City of Renton st��at Sta. 39+10 will conflict with the proposed trunk conveyance main. It was agreedi11-ate ' T.A.C-'meetiag-this month that the watermain could be relocated horizontally and vertically to avoid such conflicts. Wemwill r coordinate with Sverdrup to determine if the watermain vertical relocation would allow 2 foot minimum ver over, and 18" clearance between, the I watermain and storm laterals at Sta. 37+40 and Sta. 38+69 an void the use of ductile iron pipe materials for these two pipe runs. (Kirk Smith looking into this on y__9/29/97) Between Sta. 41+00 and Sta. 45+00 there are multiple existing inlets within the right-of-way that drain into the created wetland on the west and east side of the Oakesdale alignment. The function ' of these inlets is to drain Boeing's existing asphalt driveway which will be replaced by Oakesdale or revised due to driveway regrading. Therefore,these inlets are to be removed and the associated outfall pipes removed or abandoned as shown on the plans. A new catch basin will be installed to ' pick up gutter flow and direct it to an existing storm manhole in the area. A 48"diameter ductile iron culvert crosses the right-of-way near Sta. 43+00 connecting the created ' wetland areas on each side of the roadway corridor. The proposed roadway trunk conveyance main passes above this culvert and does not impact it. A Type 2 Catch Basin with a flow-through pipe is to be constructed at Sta. 30+09.0, 34.6' Lt. , to maintain the existing discharge route for off-site runoff and resolve the conflict between the proposed 24" diameter Oakesdale trunk conveyance main and the 12" diameter off-site storm pipe , replacement. The existing storm sewers conveying off-site runoff in this area will be simplified and replaced within the Oakesdale right-of-way as shown on the plans. Grade and-aligfmTent ate -fa - �rewe area is u Proposed on-site and proposed off-site conveyance systems compete for nearly the same space ' at Sta. 26+24, 31.6' Lt. Since Boeing anticipates the abandonment of this Oakesdale crossing in connection with future site development to the west, a zero clearance storm sewer crossing encased in controlled-density fill was selected at this location to avoid the construction of another , flow-through manhole within City right-of-way. The Oakesdale trunk conveyance main passes over the Seattle Public Utilities 60" diameter Cedar ' River Pipeline No. 4 near Sta. 26+00. The proposed ductile iron storm drain with restrained joints constructed to watermain standards meets the requirements set forth by Seattle Public Utilities, including a 12" vertical separation. Rath Pr than cons=ctinn protection slabs over the ' xeplaced._.th� cx sting-watermairrwithin--the--pr-oposed._..Oakodale. Ohl Q -way,,_.The_replace .... ---pipeline would, not-require--a-prat &b „ ' The northern conveyance system joins the southern system at Sta. 25+50, 31.6' Lt. and outfalls to the same newly-constructed water-quality pond and constructed wetland described for Basin ' 1. The conveyance system outfall pipe will be submerged during wet periods when the water- quality pond dead storage is full, but the lowest portion of the northerly conveyance system is set ' Kato & Warren, Inc. 6 September, 1997 ' Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. City of Renton ' just 0.2 feet below the water-quality pond dead storage elevation of 11.50 feet. Nearly all of the road trunk conveyance system is above the water-quality pond dead storage elevation. The conveyance and mitigation features have been over-sized to accommodate the future completion of the 5 lane road section between Sta. 20+25 and Sta. 37+00 (Phase 1B). For Phase IA ' construction, the entire system described above will be constructed in accordance with the ultimate Phase 1 concept, except that the cross pipes between Sta. 21+50 and Sta. 24+00 and between Sta. 27+00 and Sta.35+00 will be stubbed out and capped for future extension and catch 1 basin installation under the bid package for Phase 1 B. The 5.3 acre impervious site yields a 100-yr rational method flowrate of 7.34 cfs. Calculations can be found in the appendix. ' Mitigation System: The water-quality pond is designed to meet or exceed requirements outlined in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found ' in the appendix. ' VOLUME SURFACE AREA LENGTH TO WIDTH RATIO REQUIRED 20.281 c.f. 2,309 s.f. 3:1 ' AVAILABLE >31,400 c.f. >12,800 s.f. >5:1 EXCEDENT >150% >550% >150% ' This pond was designed to the same standards and has the same design exceptions as Pond 1. The outfall culvert for this pond will also pass storm events up to and including the 100-yr storm ' event. Should the culvert become blocked, the pond will overflow safely in the southerly and easterly directions into the wetland. Access to the pond will be limited by the absence of a traditional curb cut when Phase 113 is completed, but until then bollards are provided. For Phase 1A construction, the entire mitigation system will be constructed in accordance with the ultimate Phase 1 concept. ' BASIN 3 - Sta. 48+40 to Sta. 52+56 After Phase 1 construction, on-site surface water runoff will be conveyed in curb and gutter ' systems to catch basins and a closed trunk conveyance system parallel to the road and outfalling to a newly-constructed water-quality vault before joining conveyance from S.W. 16th Street where it eventually discharges to Springbrook Creek through an existing bridge abutment. ' Conveyance System: Su erelevation forces runoff to the west utter between Sta. 4 + y y p g 8 40 and the ' intersection with S.W. 16th Street, requiring catch basins on the west side of the road only. Runoff will drop into catch basins and a closed conveyance system parallel to the road. The conveyance system is constrained by the limited available fall to the water-quality vault dead storage ' surface elevation of 15.50 feet. Limited fall and pipe cover Kato & Warren, Inc. 7 September, 1997 Oakesdale Avenue S.W. Extension - Phase 1A 95% Abbreviated S.W.T.I.R. , City of Renton requires the use of ductile iron pipe materials. The conveyance ' system outfall pipe to the vault will be submerged during wet periods when the water-quality vault dead storage is full, but the road system is set entirely above the water-quality vault dead storage ' elevation. Submerged discharge was selected in accordance with the 1996 KCSWDM to enhance tranquil discharge of runoff into the vault. The 0.77 acre impervious site yields a 100-yr rational method flowrate of 2.08 cfs. Calculations can be found in the appendix. ' Mitigation System: The water-quality vault is designed to meet or exceed requirements outlined in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found I in the appendixv -�---�- x ....� .a_. _. ._..�-- _.... __._._....�._ .. _ VOLUME SURFACE AREA LENGTH TO WIDTH RATIO ' REQUIRED 2,985 c.f. 340 s.f. 3:1 AVAILABLE 4,480 c.f. 800 s.f. 8:1 ' EXCEDENT 150% >200% >250% , It is not necessary to divide the vault into cells since the length-to-width ratio is >4:1 (1996 KCSWDM). It is also not necessary to bypass storm events greater than the water-quality design ' storm (1996 KCSWDM). Access to the vault has been improved by the use of 36" diameter access risers and frames. The vault will be sloped toward the outlet to facilitate maintenance flushing. A down-turned 90 degree elbow at the outfall pipe will provide oil spill containment ' and capture floatable material prior to discharge to the downstream system. Kato & Warren, Inc. 8 September, 1997 1 1 1 1 Abbreviated Su ace later 1 . Technical Information Report 1 95 % Su b m 1,tta 1 1 1 Appendix A 1 1 Mitigation Calculations 1 for 1 Oakesdale Avenue S. W. Extension - Phase IA 1 S. W. 2 nth Street to S. W. 16th Street 1 1 Presented to: City of Renton 1 Planninglftilding/Public Works 1 Presented by: Kato & Warren, Inc. September 1997 1 1 ' n KATO & WARREN, INC. CLIENT By L;F-Z 2003-WESTERN AVENUE SUITE 555•MARKET PLACE ONE PROJECT 0��s d�e P E�.1 r;r Lp�`,.'�/� Date 'S sheet of SEATTLE,WASHINGTON 98121 Ch kd a 2'-I g l K S (206)448-4200 CONTACT Q Po 5� 'n Date 17 -d t I' FAX(206)728-5608 PHONE ( Job No. a;;N � — I I'I 5� 1 Sc 13toa1 12� _ 2 .2a �36(oU SF�A� �l-�jb0 aF�FK.. beck �o\k 4. 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CLIENT ' � By 2003-WESTERN AVENUE SUITE 555•MARKET PLACE ONE PROJECT 0^kat4CW f- A-I)e-- Svs FX'r enSP4 Date 8 20 `3 sheet of ' 9 SEATTLE,WASHINGTON 98121 CONTACT �� on� ��'t-�� Chkd c�� (206)448-4200 Date FAX(206)728-5608 PHONE Job No. B�SI� 2P — �ro�oQcO Zo-sin 2 ST4 `rl t+40 �Tf� Zot25) L�tSr C..1IJ;mP z IliC e�$phA��ILor cr<��. , b7A4 +%140 in W jA - t1,4- - 66LF aercrs P��rnon� 4e, r- 3.,Ae a; 0.290% (ns= o.olk) men sti�f�ow I �cncerc��a�ec� Io�,l 140L-F' I L13 (2- zs= 1 .12) 2-1) 19.8�-�-� _ e Soo LF in CPtfP _ Leo I.31/o , channel o.>, b o-t- I lC o = 18►o LF' i r\ c P E P 8 I L = o. 4-2- /0-011 X (v(1)o. + I4a .� joo +. laic (o. 00290) (oOx Z7 0.01-43 (ocx 47- o.oial bo Z o-�oolZ$ ' 2. 3, j -t-- 0. - -- 1 .73 -t- 2 0.4 = 2 S-. 2 = 20�2Ts� car 199 y Kc SWD Rw'k\�remen�T }�est�n v�1s-�ctf �.�cY'o.�e, (hft�.= min , a� I�c � ►'�asr/� ('►n�o�r>Jt'o�s q��a <J�f�52f�1AYlJ2�y 1°�e)C �.-60 AQ M I Jolt �of.r~e i s > 3I , 45T > I, rey --_, !/ 1 ' KATO & WARREN INC. CLIENT 2003-WESTERN AVENUE By �aS SUITE 555•MARKET PLACE ONE PROJECT d'- cWe q. F-w4trSitrl Date 8 9 sheet of ' SEATTLE,WASHINGTON 98121 CONTACT Vr Zc;n Chkd (206)448-4200 Date FAX(206)728-5608 PHONE Job No. �4•Ib� (S2+:S6 — 41+40) $2 = C_ 1le $2! = b�cl�1 a� wo`k +e 6�c1•- ts� �3 pO 3 /I�� Ge�so�at`tZVe�rvc tv-ri-� /tlrrewinv �?IOC�da@-J asp A-e = �. c-lp 5-TA 4--6+4o 1 n v,1 ��.�+�r, 1Ck T SAW (o(e 1-F xcec5tZ pav�me 4-t, R �k 4t G' S = 0_290% (ns = 0_61jJ �44"cl 'b ca C 1-�'+% Nl= Zl) -IT¢r�`lJc nn�` tle�+.� 1�� LF r l cPC-_P C s = 2.Zola (kc-"4'Z) ' -c- 0.4 °-$ (1.98,1�2 (4-7 .Co290)ft. ba k 2Z�4 1.ox4-2- o_c1.3 2. 39 -t- c .94o + d • 34- — 3 . Off n_ L4--e .3 „,;�. ��.;��rre�� -ram Qwq 0.2Z :Ts J w 12, = Z,`t�S�c� 1940 l<czWoN\ R.ey,,;r�M dirt(\ •c ..LQ. /t rn".1 ct'/1IScr 'je" ii k ) i% }C 0•7% Rc = 34r' 6� Rom. r 1 > 800 > 2.3 1,MQ-_� fai rs±Q C Uf gQi O f'p� 9 / 10 V.Eo Z�C' 1-4l,r �-ol•I -o-4 1a1/ l-�C 1 �-�O :_ (_G .};n c:. .i� r•.-� fi't tn+4 . w L D 8/25/97 12 : 21 :46 am Kato & Warren Inc . page 1 -------------------OAKSDAKE-AVENUE-S .W. -EXTENSION ' BASIN RESULT SUMMARY BASIN --- -RATE- ----TIME----- Hydrograph Area ' ID ---cf-- Ac-ft --cfs- -min- hours Methodology Acres iPWQ 8725 0.20 0.66 470 7.83 SBUH Method 2.28 2PWQ 20281 0.47 1.14 480 8.00 SBUH Method 5.30 ' 3PWQ 2985 0.07 0.22 470 7.83 SBUH Method 0.78 L ' 8/25/97 12 : 9 :56 am Kato & Warren Inc . page 1 OAKSDAKE AVENUE S .W. EXTENSION BASIN SUMMARY 1 BASIN ID: 1PWQ NAME: PROPOSED BASIN 1 - WQ STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 28 Acres BASEFLOWS : 0 . 00 cfs 1 RAINFALL TYPE. . . . : KC24HR PERV IMP PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 2 . 28 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00 TC. . . . : 0 . 00 min 6 .30 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 0 . 66 cfs VOL: 0 . 20 Ac-ft TIME : 470 min 1 BASIN ID: 2PWQ NAME: PROPOSED BASIN 2 - WQ STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 30 Acres BASEFLOWS : 0 . 00 cfs ' RAINFALL TYPE. . . . : KC24HR PERV IMP PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 5 .30 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00 1 TC. . . . . 0 . 00 min 25 . 20 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 1 . 14 cfs VOL: 0 .47 Ac-ft TIME : 480 min ' BASIN ID: 3PWQ NAME: PROPOSED BASIN 3 - WQ STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0 . 78 Acres BASEFLOWS : 0 . 00 cfs 1 RAINFALL TYPE. . . . : KC24HR PERV IMP PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 0 . 78 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00 TC. . . . . 0 . 00 min 6 .30 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 0 . 22 cfs VOL: 0 . 07 Ac-ft TIME: 470 min i i 1 1 1 1 1 KATO & WARREN, INC. CLIENT 2003-WESTERN AVENUE By SUITE 555•MARKET PLACE ONE PROJECT ,,-S Date 7 ! sheet of SEATTLE,WASHINGTON 98121 CONTACT awbm Chkd , (206)448-4200 Date 9 7-,4+V FAX(206)728-5608 PHONE ( Job No. yJQ �on� �i za'n.q k�I rJ� 1 APIL ca I 2 LlS I W nq �G �-l- 9(a {<Gc, �M �r�G�-�-,.,r�� .For `Za.EiG V`lei-f'%n4 (Pord Vc1 ume. I,,Z Z +,''Me-; voLuA-e Ct- rurto (' Ca1Lu��c� Mr.tX -F"m m e.r('W4 S}e M, J Vr r :. oSir> '4-ri'bu�6 �'meecJio Iraq = ��4aSp-$tom) ID��-C2+�t25 -i�tsol i�2 = "J)JO SF Z�1S� n Lar-fn . yr= 6.1 (T It,1St5 tF) 0.4-1 Qeutn Z: Vr- O.g {2B0� no sr-) Q,41, _ 8�13� C..F cl1c'.,lok- KATO & WARREN INC. CLIENT By Ifs 2003-WESTERN AVENUE ' SUITE 555•MARKET PLACE ONE PROJECT 11��c c a ffva�,� 1�_y ,.r, Date L /27 sheet of SEATTLE,WASHINGTON 98121 CONTACT J ^I�"s'Z i n cr 9 I<cSW Chkd (206)448-4200 Date q�-r.. re FAX(206)728-5608 PHONE Job No. cr r • Tom. Q._= �Z+�'r7o - -+ri-4o) IZ.f d(b l 0.9 �34 1 Z 31-) p•�l r 11zoZ cF G oG C..F Or 134 CY 4I-e re9wR 0.(-?r� L""j*-r `.` tl 4-CP ctt"Ee\ !1'cl Y1 wa`��t`vC oC�, /1 �.t' L-9�-��, �L_, `�e.�-oSC- o. .t a•,.`,� w� .��t c�,� ,,,.�ttl� ein� an. eve_r�`gr_ a��-� �ja 1 r KATO & WARREN, INC. CLIENT M ' By 2003-WESTERN AVENUE k�S SUITE 555-MARKET PLACE ONE PROJECT NVF �W En siD Date o 9-7 sheet of ' SEATTLE,WASHINGTON 98121 Chkd CONTACT o nd 1 �.n� 2 deck s (206)448-4200 Date 97-4{$ FAX(206)728-5608 PHONE Job No. (�NEo Fy rTo" PAR (�L�v 9.cam) = 3 TOP N�ksA (��v. l3 • b� = 1212)� �{2 12 Jot-\4me ; - , 2 x 4 = 3 2� 01 O -C� 3 JoLv, L = VZ s {3 :. 30 % oversi� -d (> 15olk :• o �� 1 'S OTT o m V Lu ME : 1 2,8Z3 0 � � P-EQ- ;20 ZQl � J 1 1 1 KATO & WARREN INC. CLIENT ' +� � By kR5 2003-WESTERN AVENUE' Date sheet of SUITE 555-MARKET PLACE ONE PROJECT `�� E e *� ie SEATTLE,WASHINGTON 98121 Chkd (206)448-4200 CONTACT �� Si ztr� Date 9�- 44 FAX(206)728-5608 PHONE Job No. ' 'gASI N * I & tt F rzr S �) c> -- S\XB►AF reC1 F.�r�, RAJ F_YZS[- S l.�P c�L-V FJ2T' ' &ETWM—ry W. Q, TIOI PW40 $w1'j'—F SwAt.� �4 1' ef�j.e" 0 Z wave- 1 e d C)�- 1 `� Z4" . 8 10--7 gP�Slr\f # I —'' Qlaa — .-1 5 CTz -► �� g t+ Cu1ve,.�1 0. 3 I -C t v. cv I B�1SiN # I )3_ a-- 0. % I = I3 - 9I BASIN " Z 1 � - `' } 0. 7 + �C.E. IZ ,M . = Ci ✓,� ��eeJ'^� , �e-��e��e 1�A.�ua1 � (off �d . � P��`�ssi��l 4.3.1 CULVERTS-METHODS OF ANALYSIS ' FIGURE 4.3.LD HEAD FOR CULVERTS(PIPE W/"n"=0.012)FLOWING FULL WITH OUTLET CONTROL , 2000 ' N .4 z W slope ... p• So 1000 z = SUBMERGED CUTLET CULVERT FLOWING FULL .S J N W-)4*he-LS• S 800 120 For owlet crmm •et "Aimaj•d, =%puts MIN by .6 , Insttals ditCribed in tM d•si" proulw• 600 108 .8 S00 96 ' 400 84 300 72 ' 66 / ( E- 200 80 I----E*� O ��y UJ W 2 N s a7. `o c�ti Z U)LLJ 48 0.48 ____ L•o.s O R.O �� = 3 100 z 42 00 300 w_ 4 80!� ? / O 3 6 p0 S h0 60 S O 3 3 A00 too 6 W /.2. " 40 tjpp IC• 8 , i • o Ta 10 3 0 a' 20 2l� ',-' is 20 , 10 I S 6 12 S ' 4 Surface Water Design Manual 4-4 i February 1996 Draft ' 1 1 Abbreviated Surface Water 1 Technical Information Report i 95 % Submittal i 1 Ap endix B 1 1 Conveyance Calculations 1 fo r 1 Oakesdale Avenue S. W Extension - Phase lA 1 S. W. 2 nth Street to S. W. 16th Street 1 1 Presented to: City of Renton Planning/Building/Public Works 1 Presented by.- Kato & Warren, Inc. September 1997 1 1 ' OAKESDALE AVENUE S.W. EXTENSION Surface Water Technical Information Report p Prep'd By: SSS Phase 1A-S.W.27th St.to S.W. 16th St. Conveyance System Analysis and Sizing Checked By: ' Run Date:9/24/97 ' in �1-Trunk Main I b=!0.630Gs R100-year Pp=:3.92 aq=2.61 R Sum i i i I I I 1 1I I 1 1 ! Upstream CB Info. Pipe and Upstream CB Info. Backwater Data Pipe Location Sub Basin Number Area C C'A 1 T� iR IR QR Pipe Typ.n Slope Qom, V� VR L T, CL Elev. Fall Rim Elev. U/S I.E. D/S I.E. Max.Depth CB Max.Diam. Th.Mat. Min.Cover delta Q trunk Q Ratio dQ/tQ From To ac.) min. c.f.s.)1 (in. ft./ft. c.f.s. f. .s. f. .s.)l (ft. min.)l (ft. ft. ft. ft. ft. ft.) in. in CB ft. c.f.s. c.f.s. ' 10+00.0 Rt 26.5' 11+50.0 Rt 26.5' 0.2410 I 0.900 i 0.22'1 0.21691 6.301 0.819!3.211 0.6961 12', 0.014' 0.005068 2.361 3.01 2.611 1481 0.945' 18.9001 -0.54! 18.361 n/a 15.261 3.101 1 ! 121 LCPE 2.001 0.70 0.00 0.00 11+50.0 Rt 26.5' 113+00.0Rt26.5' 0.24101 0.900 0.221 0.43391 7.25i 0.75012.941 1.2751 12 0.014 0.0050681 2.36 3.01 3.06! 148 0.8061 18.150 -0.54' 17.611 14.51 14.51; 3.10. 1 121 LCPE 2.00! 0.581 0.70 i 0.83 13+00.0 Rt 26.5' 14+50.0 Rt 38.5' 0.24101 0.90010.22', 0.6508I 8.05 i 0.701 12.751 1.7891 12 0.014 0.0006761 0.861 1.10' 2.28 i 148 i 1.0821 17.400 -0.541 16.86 13.76' 13.76 3.101 1 12 LCPE 2.00 0.51! 1.271 0.40 ' 14+50.0 Rt 38.5' 115+50.8 Rt 37.7' 0.28241 0.90010.25' 0.90501 9.13 i 0.64812.541 2.298 12 I 0.014 I 0.0006191 0.83 i 1.05: 2.931 9710.5521 16.712 -0.64 16.07; 13.66; 13.66! 2.411 i! 191 DI 1.311 0.511 1.791 0.28 Sum 1.00551 9.681 1 1 ! ' 19+00.0 Rt 32.5' 17+75.0 Rt 32.5' 1 0.2353 0.90010.21' 0.2118 6.30 j 0.8191,3.21 0.6801 12 0.014: 0.0033331 1.921 2.44 2.23' 12310.919 18.4001 -0.66 17.74! n/a 14.43! 3.311 1 j 121 LCPE 2.211 0.68 0.001 0.00 17+75.0 Rt 32.5' 16+50.0 Rt 32.5' 1 0.23531 0.900 0.21 I 0.42361 7.22! 0.751 2.94I 1.247 12' 0.0141 0.0019511 1.471 1.8t 2.091 12310.981 I 17.775 -0.66' 17.121 14.021 14.02 i 3.101 11 121 LCPE 2.001 0.57, 0.68111 0.84 16+50.0 Rt 32.5' 115+50.8 Rt 37.7' 0.23531 0.90010.211 0.63531 8.201 0.69312.72 1.7271 121 0.014 0.001895 1.44' 1.84' 2.201 95 10.7201 17.150 -0.66' 16.49i 13.781 13.781 2.71 1 121 DI 1.66! 0.481 1.25' 0.38 ' Sum=, 0.7059, 8.921 1 15+50.8 Rt 37.T WO Pond 1 0.3765 0.900 0.341 1.8791 9.68 0.62412.45 4.599i 12' 0.014 0.045455' 7.07! 9.00' 9.57' 44'0.077' 16.712! 15.901 13.60; 13.60 2.301 2-72 12 DI 1.25 0.57 4.02 0.14 Sum=! 2.0879I i j 9.761 iI i I I Kato&Warren, Inc. RM1T1002.XLS Page 1 of 1 BASIN I EAST TRUNK(WO POND TO STA 15+50.8.31T RTl t KING COUNTY DEPARTMENT OF PUBLIC WORKS Surface Water Management Division BACKWATER ANALYSIS PROGRAM ' Version 4.22 1 -INFO ON THIS PROGRAM ' 2-BWCHAN 3 -BWPIPE 4-BWCULV 5-BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION 3 BACKWATER COMPUTER PROGRAM FOR PIPES t SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD F-FILE k ' ENTER: NUMBER OF PIPES 1 ------------------------------------------------------------------------------- ' OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: t 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV. F-TW/HW DATA FILE s 2)ENTER: TW-ELEV ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) ' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH 15" 18"X 11" 17"X 13" * 42" 50"X 3 1" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: ' 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7 -CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ' ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 44.00 12.00 1 11.60 13.60 6 ' ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=0,BROAD-WEIR=1, SHARP-WEIR=2) 15.90 0 ' 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A s 3)ENTER: VELOCITY(fps)UPSTREAM ' .00 ------------------------------------------------------------------------------- ENTER: QMIN, QMAX, QINCRE, PRINT-OPTION(STANDARD=1, CONDENSED=2, EXPANDED=3) 4.50 4.70 .10 1 , PIPE NO. 1: 44 LF- 12"CP @ 4.55% OUTLET: 11.60 INLET: 13.60 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4.50 1.68 15.28 * .012 .89 .53 2.31 2.31 .89 ***** 1.68 ' 4M 1.72 15�32 * .012 .90 .54 2.31 2.31 .90 ***** 1.72 RTM EL.=15.90.O 4.70 1.76 15.36 * .012 .90 .55 2.31 2.31 .90 ***** 1.76 SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S-STOP , f SPECIFY[d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: bw let2.hw SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S-STOP ' s 7 Stop-Program terminated. BASIN 1 SOUTH TRUNK(]:A 1 + 0.8. 7.7' RT TO STA 10+00.0.36.5' RTl KING COUNTY DEPARTMENT OF PUBLIC WORKS ' Surface Water Management Division BACKWATER ANALYSIS PROGRAM Version 4.22 1 -INFO ON THIS PROGRAM 2-BWCHAN 3-BWPIPE 4-BWCULV 5-BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION ' 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD F-FILE k ' ENTER: NUMBER OF PIPES 4 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S - SINGLE TW-ELEV. F-TW/HW DATA FILE s ' 2)ENTER: TW-ELEV 15.32 ------------------------------------------------------------------------------- "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" ' ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ' TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH 15" 18"X II" 17"X 13" * 42" 50"X 3 1" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: ' 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3 -CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ' ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 97.00 12.00 1 13.60 13.66 6 ENTER JUNC NO. 1: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ' 16.07 .00 2.00 .28 ENTER PIPE#2: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE , 148.00 12.00 1 13.66 13.76 6 ENTER JUNC NO. 2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO , 16.86 .00 2.00 .40 ENTER PIPE#3: LENGTH(ft), DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 148.00 12.00 1 13.76 14.51 6 ENTER JUNC NO. 3: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 17.61 .00 2.00 .83 ' ENTER PIPE#4: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 148.00 12.00 1 14.51 15.26 6 ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO.4-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1, SHARP-WEIR=2) 18.36 0 ' 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER: VELOCITY(fps)UPSTREAM .00 ------------------------------------------------------------------------------- ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2, EXPANDED=3) ' 2.20 2.40 .10 1 PIPE NO. 1: 97 LF- 12"CP @ .06% OUTLET: 13.60 INLET: 13.66 INTYP: 6 JUNC NO. 1: OVERFLOW-EL: 16M BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .28 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 2.20 2.06 15.72 * .012 .64 1.00 1.72 1.72 1.98 2.06 .91 ' 2A 2.10 15.76 * .012 .65 1.00 1.72 1.72 2.00 2.10 .94 QK 2.40 2.14 15.80 * .012 .67 1.00 1.72 1.72 2.04 2.14 .96 2.50 2.18 15.84 * .012 .68 1.00 1.72 1.72 2.07 2.18 .98 PIPE NO. 2: 148 LF- 12"CP @ .07% OUTLET: 13.66 INLET: 13.76 INTYP: 6 JUNC NO. 2: OVERFLOW-EL: lfiM BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .40 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* ' 1.72 2.32 16.08 * .012 .56 1.00 2.06 2.06 2.26 2.32 .79 IM 2.39 16.15 * .012 .58 1.00 2.10 2.10 2.32 2.39 .82 QK 1.87 2.46 16.22 * .012 .59 1.00 2.14 2.14 2.39 2.46 .84 1.95 2.54 16.30 * .012 .60 1.00 2.18 2.18 2.46 2.54 .86 PIPE NO. 3: 148 LF- 12"CP @ .51% OUTLET: 13.76 INLET: 14.51 INTYP: 6 ' JUNC NO. 3: OVERFLOW-EL: 17.61 BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .83 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* ' 1.23 1.76 16.27 * .012 .47 .47 2.32 2.32 1.72 1.76 .66 L21 1.85 16.36 * .012 .48 .49 2.39 2.39 1.80 1.85 .68 Qg 1.34 1.94 16.45 * .012 .49 .50 2.46 2.46 1.89 1.94 .69 ' 1.40 2.04 16.55 * .012 .50 .51 2.54 2.54 1.99 2.04 .71 PIPE NO.4: 148 LF- 12"CP @ .51% OUTLET: 14.51 INLET: 15.26 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* ' 1.07 16.33 * .012 .35 .34 1.76 1.76 1.06 1.07 .47 RIM EL._.=18.36.OK .70 1.16 16.42 * .012 .35 .35 1.85 1.85 1.15 1.16 .48 .73 1.26 16.52 * .012 .36 .36 1.94 1.94 1.24 1.26 .49 .76 1.36 16.62 * .012 .37 .37 2.04 2.04 1.34 1.36 .50 SPECIFY:R-REVISE,N-NEWJOB,F-FILE, S -STOP f SPECIFY [d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.4: bw 1 st4.hw ' SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP s 7 ' Stop-Program terminated. BASIN 1 NORTH TRUNK(STA 15+50.8.37.7' RT TO STA 19+00.0.32.5' RT) KING COUNTY DEPARTMENT OF PUBLIC WORKS Surface Water Management Division ' BACKWATER ANALYSIS PROGRAM Version 4.22 ' 1 -INFO ON THIS PROGRAM 2-BWCHAN ' 3-BWPIPE 4- BWCULV 5-BWBOX 6-DATA-FILE ROUTINES ' 7-RETURN TO DOS ENTER OPTION 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD , F-FILE k ENTER: NUMBER OF PIPES ' 3 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: , 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV. ' F-TW/HW DATA FILE s 2)ENTER:TW-ELEV ------------------------------------------------------------------------------- "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" ' ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL (n=0.024) 6-CONC/SMOOTH ARCH(OLD) ' ' 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ' ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH ' 15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" ' INLET TYPE CODING: 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7 -CMAP/PROJ. 10- OTHER(SEE 2-CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT ' 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ENTER PIPE# 1: LENGTH(ft), DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 95.00 12.00 1 13.60 13.78 6 ENTER JUNC NO. 1: OVERFLOW-ELEV, BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 16.49 .00 2.00 .38 ' ENTER PIPE#2: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 123.00 12.00 1 13.78 14.02 6 ' ENTER JUNC NO. 2: OVERFLOW-ELEV, BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO 17.12 .00 2.00 .84 ' ENTER PIPE#3: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE 123.00 12.00 1 14.02 14.43 6 ------------------------------------------------------------------------------- ' INFLOW CONDITIONS PIPE NO. 3 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2) 17.74 0 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A ' s 3)ENTER: VELOCITY(fps)UPSTREAM .00 1 ------------------------------------------------------------------------------- ENTER: QMIN, QMAX, QINCRE, PRINT-OPTION(STANDARD=1,CONDENSED=? EXPANDED=3) 1.60 1.90 .10 1 ' PIPE NO. 1: 95 LF- 12"CP @ .19% OUTLET: 13.60 INLET: 13.78 INTYP: 6 JUNC NO. 1: OVERFLOW-EL: 16A2 BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .38 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI , ******************************************************************************* 1.60 1.76 15.54 * .012 .54 .78 1.72 1.72 1.71 1.76 .76 LQ 1.78 15.56 * .012 .56 .84 1.72 1.72 1.72 1.78 .79 Qg , 1.80 1.81 15.59 * .012 .58 .92 1.72 1.72 1.75 1.81 .82 1.90 1.85 15.63 * .012 .59 1.00 1.72 1.72 1.77 1.85 .84 PIPE NO. 2: 123 LF- 12"CP @ .20% OUTLET: 13.78 INLET: 14.02 INTYP: 6 JUNC NO. 2: OVERFLOW-EL: -12 BEND: 0 DEG DIAIWIDTH: 2.0 Q-RATIO: .84 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.16 1.68 15.70 * .012 .46 .61 1.76 1.76 1.64 1.68 .64 1�2, 1.71 15.73 * .012 .47 .63 1.78 1.78 1.67 1.71 .66 -QK 1.30 1.76 15.78 * .012 .49 .66 1.81 1.81 1.71 1.76 .68 1.38 1.81 15.83 * .012 .50 .69 1.85 1.85 1.76 1.81 .71 , PIPE NO. 3: 123 LF- 12"CP @ .33% OUTLET: 14.02 INLET: 14.43 INTYP: 6 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* .63 1.31 15.74 * .012 .34 .37 1.68 1.68 1.30 1.31 .45 ' &ZZ 1.35 15-7$ * .012 .35 .38 1.71 1.71 1.34 1.35 .47 RIM EL.. .71 1.41 15.84 * .012 .36 .39 1.76 1.76 1.39 1.41 .49 .75 1.47 15.90 * .012 .37 .40 1.81 1.81 1.45 1.47 .50 SPECIFY: R-REVISE,N-NEWJOB, F-FILE,S -STOP f SPECIFY[d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.3: ' bwlnt4.hw SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S - STOP ' s 7 Stop-Program terminated. ' ' OAKESDALE AVENUE S.W.EXTENSION Surface Water Technical Information Report Y PreP'd By: SSS Phase 1 A-S.W.27th St.to S.W. 16th St. Conveyance System Analysis and Sizing Checked By: ' Run Date:9/24/97 ' Basin: 2-Trunk Main I Given: R='100-year I Pq=,3.92 aR=!2.61 bq= 0.630 Sum U stream CB Info. Pipe and Upstream CB Info. Backwater Data ' Pi Pe Location ISub Basin Number Area C C A C T R OR Pipe Typ.n Slope 0,,, V. VR L T, CL Elev. Fall Rim Elev. U/S I.E. D/S I.E. Max.Depth I CB I Max.Diam. Th.Mat.1 Min.Cover delta 0 trunk 0 Ratio dO/tO From I To ac. min. c.f.s. in. ftJft. c.f.s.) f.p.s.)l (f. .s. ft. min. ft. ft. ft. ft. ft. (ft.) 1 1 (in. in CB ft. c.f.s. c.f.s. 21+50.0 Lt 32.5' 22+60.0 Lt 32.5' 0.23531 0.900' 0.211 0.21181 6.301 0.81913.211 0.6801 121 0.0141 0.0050931 2.371 3.01 Z60 10810.6921 18.4001 -0.66 17.741 n/a 14.321 3.42, 1 121 LCPE 1 2.32' 0.68i 0.00 0.00 22+60.0 Lt 32.5' 124+00.0 Lt 32.5' 0.2071 0.900' 0.191 0.3981' 6.991 0.76713.001 1.1961 12 I 0.014' 0.0050721 2.36' 3.01 3.01 138!0.7641 17.850 -0.66 17.191 13.77', 13.77 3.42'' 1! 12 LCPE j 2.32' 0.52I 0.68' 0.76 ' 24+00.0 Lt 32.5' 25+50.0 Lt 31.6' 1 0.2635 0.900' 0.241 0.6353I 7.76! 0.718j 2.81! 1.7881 121 0.014 0.005170! 2.39' 3.04: 3.33 147'0.736j 17.150 -0.661 16.491 13.07: 13.07' 3.421, 1 121 LCPE j 2.32' 0.59i 1.20' 0.49 Sum=i 0.70591 8.491 1 1 1 1 I 1 ' 47+00.0 Rt 32.5' 45+00.0 Rt 32.5' 0.2635 0.900' 0.24 i 0.23721 6.30 i 0.81913.211 0.761 121 0.014 0.0226291 4.99: 6.351 4.58! 19410.706 23.904 -0.991 22.91 n/a 1 19.811 3.101 11 12, LCPE 1 2.00 0.76 0.00! 0.00 45+00.0 Rt 32.5' 43+77.0 Rt 32.5' 0.3765 0.900' 0.34; 0.5760 7.011 0.76613.00 1.7291 121 0.014 0.013917 3.91 4.98 4.82 12010.4151 19.4621 -0.94 18.52! 15.42! 15.42 3.10 11 121 LCPE 2.00 0.97' 0.76 1.27 43+77.0 Rt 32.5' 142+00.0 Rt 32.5' 0.2315! 0.900'' 0.21 0.7844� 7.42! 0.73812.891 2.2701 121 0.014 0.002571', 1.68I 2.141 2.891 17511.009! 17.5391 -0.69 16.851 13.75i 13.75: 3.101 11 12' LCPE 2.00 0.54I 1.73, 0.31 ' 42+00.0 Rt 32.5' 140+21.0 Rt 32.5' 0.6767' 0.900 0.61 1.3935' 8.431 0.681 2.671 3.7221 1811 0.014 0.0011861 3.37'1 1.91' 2.111 1771 1.3981 16.5171; -0.66 15.861 13.301 13.30 i 2.561 1 181 DI 1.00 1.45, 2.27i 0.64 40+21.0 Rt 32.5' 40+14.0 Lt 32.5' 0.1431' 0.900' 0.11 1.52231 9.831 0.61912.4 3.691 18' 0.014' 0.0012701 3.491 1.971 2.22', 6310.4731 16.9901 -0.66' 16.331 13.091 13.09 3.241 1I 181 DI 1.68' -0.031 3.721 -0.01 40+14.0 Lt 32.5' 138+62.0 Lt 32.5' ! 0.1431 0.900 0.131 1.65101 10.301 0.601 2.351 3.886 i 18 0.014' 0.0012001 3.391 1.921 Z201 150 1.1361 17.0101 -0.661 16.351 13.011 13.01 I 3.34! 1 181 DI 1.78 0.20i 3.691 0.05 38+62.0 Lt 32.5' 37+35.0 Lt 32.5' ! 0.2410. 0.900 0.22i 1.86791 11.441 0.562!2.201 4.1161 18 0.014 0.001190 3.37' 1.91 Z33 1261 0.9011 17.4601 -0.66 16.801 12.831 12.83 3.97' 1' 18i LCPE 2.32' 0.23 3.891 0.06 37+35.0 Lt 32.5' 136+30.0 Lt 31.6' 1 0.2024 0.900 0.181 2.05001 12.341 0.536112.101 4.307' 18 0.014 0.001165j 3.34'' 1.891 2.44 10310.7041 17.8401 -0.661 17.181 12.681 12.68 4.501 1 181 LCPE 2.85 0.19I 4.12' 0.05 36+30.0 Lt 31.6' 35+00.0 Lt 31.6' 0.2447 0.900 0.221 2.27021 13.04I 0.51812.0314.6061 241 0.014 0.0011811 7.241 2.30' Z44 127 0.8671 18,1601 -0.66 17.501 12.56! 12.561 4.941 2-48 24 LCPE 2.76 0.30i 4.31 0.07 35+00.0 Lt 31.6' 132+92.0 Lt 31.6' j 0.2824 0.900! 0.25: 2.52441 13.91 I 0.4971 1.951 4.9% 241 0.014 0.0011711 7.21' 2.29' 2.46 2051 1.3891 18.5501 -0.661 17.89! 12.41 12.41 5.48 248; 24' LCPE 3.30' 0.31 4.61 0.07 ' 32+92.0 Lt 31.6' 131+30.0 Lt 31.6' 0.0979 j 0.900' 0.091 2.6125: 15.301 0.46811.83', 4.7931 241 0.014' 0.001203 7.301 2.32 2.48', 1581 1.062! 18.8001 -0.66! 18.141 12.171 12.171 5.9711 2-48 241 LCPE 1 3.79 -0.12, 4.921 -0.03 31+30.OLt31.6' j30+09.OLt34.6' 1 0.3163' 0.9001 0.28'I 2.89711 16.361 0.44911.7615.096'1 24' 0.014' 0.001197 7.291 2.32! 2.50' 117!0.7801 18.3401, -0,661 17.681 11.981 11.981 5.701 2-48! 241 LCPE 1 3.52' 0.30'' 4.791 0.06 30+09.0 Lt 34.6' 129+85.0 Lt 31.6' 0.1139' 0.9001 0.101 2.99961 17.141 0.43611.711 5.1231 24 I 0.014' 0.0015001, 8.16 2.60 2.74 2010.1221 17.9771 -0.661 17.321 11.841 11.841 5.481 2-72' 241 LCPE 1 3.301 0.03' 5.10' 0.01 29+85.0 Lt 31.6' 28+40.0Lt31.6' 0.15911 0.900 0.141 3.14281 17.26� 0.434;1.70i 5.3441 24' 0.014' 0.001135; 7.10 2.26i 2.48'; 14110.9481 17.905! -0.66 17.251 11.81 j 11.81 j 5.44' 2-48 241 LCPE 3,26 0.22 5.12 0.04 28+40.0 Lt 31.6' 126+95.0 Lt 31.6' 1 0.2730 0.900 0.25I 3.3884I 18.21 0.41911.64', 5.571' 24' 0.0141 0.0012061 7.31' 2.33'i 2.561 141 0.9181 17.4701 -0.661 16.811 11.65I 11.651 5.161 248' 24I LCPE 1 2.98 0.231 5.341 0.04 26+95.0 Lt 31.6' 125+50.0 Lt 31.6' 0.2730 0.900 0.2511 3.6341', 19.131 0.407'1.591 5.7931 24 0.0141 0.001206 7.31 2.33i 2.584 14110.9111 17.0351 -0.66! 16.38 11.481 11.48! 4.90 2-48 j 241 LCPE 2.72' 0.22' 5.57' 0.04 ' Sum 4.0379 20.041 25+50.0 Lt 31.6' i25+50.0 Rt 50.0' 0.27771 0.900 0.25, 4.5193 20.04' 0.395I 1.551 6.9961 241 0.014 0.0175001 27.861, 8.871 7.371 7610.1721 16.7121 -0.66 16.05! 11.31 i 11.311 4.741 2-46' 241 LCPE 2.56 2.70' 9.70 -0.28 25+55.0 Rt 32.5' 125+50.0 Rt 50.0' 0.2777 0.900 I 0.25 i 0.2499 20.04 0.39511.55! 0.387, 121 0.014:' 0.131333 12.021 15.31! 6.99 15'0.036 16.713 -0.661 16.05 i n/a 12.95! 3.10 i 11 121 LCPE 2.00' 0.39 0.00 0.00 I I i 2 i - 5+50.0 Rt 50.0 'WO Pond ' 0.0000 i 0.900 0.00' 4.7 i I _ _ I 692' 20.21 0.39311.54. 7.3431 24I 0,014' 0.017778i 28.08i 8.94, 7.511 27 0.060i 1 15.38� 9.981 9.98' 5.40! 272' 24' LCPE 3.22' 0.04i 7.38: 0.01 � I Sum= 5.2991 20.27' ' Kato&Warren, Inc. RM2T1005.XLS Page 1 of 1 ' BASIN')EAST TRUNK(NVO POND TO STA +50 0 50 0' RTl KING COUNTY DEPARTMENT OF PUBLIC WORKS ' Surface Water Management Division BACKWATER ANALYSIS PROGRAM ' Version 4.22 1 -INFO ON THIS PROGRAM 2-BWCHAN 3-BWPIPE 4-BWCULV 5-BWBOX ' 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD F-FILE k ENTER: NUMBER OF PIPES 1 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: ' 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S-SINGLE TW-ELEV. F-TW/HW DATA FILE s 2)ENTER: TW-ELEV ' 13.30 ROUND/ARCH PIPE INPUT CODING INFORMATION: ' PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING , TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH ' 15" 18"X I I" 17"X 13" * 42" 50"X 31" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" , 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: , 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT , 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 27.00 24.00 1 9.50 9.98 6 ' ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=0,BROAD-WEIR=1,SHARP-WEIR=2) 15.38 0 ' 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER:VELOCITY(fps)UPSTREAM ' .00 ------------------------------------------------------------------------------- ENTER: QMIN,QMAX,QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2, EXPANDED=3) , 7.20 7.40 .10 1 PIPE NO. 1: 27 LF-24"CP @ 1.78% OUTLET: 9.50 INLET: 9.98 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI 7.20 3.45 13.43 * .012 .96 .64 3.80 3.80 3.35 3.45 1.35 7.30 3.44 13.42 * .012 .96 .65 3.80 3.80 3.34 3.44 1.36 7.40 3.45 13.43 * .012 .97 .65 3.80 3.80 3.34 3.45 1.37 7.50 3.45 1&43 * .012 .98 .66 3.80 3.80 3.35 3.45 1.38 RIM EL.= 15.38.OK ' SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S -STOP f ' SPECIFY[d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: bw2et4.hw SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S - STOP , s 7 , ' BASIN "WEST TRUNK(STA 25+50.0.31_ ' .T- STA 25+50 0 ;0 ' KING COUNTY DEPARTMENT OF PUBLIC WORKS Surface Water Management Division BACKWATER ANALYSIS PROGRAM ' Version 4.22 1 -INFO ON THIS PROGRAM 2-BWCHAN 3-BWPIPE 4-BWCULV ' 5 -BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION ' 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD F-FILE k ' ENTER:NUMBER OF PIPES 1 ------------------------------------------------------------------------------- ' OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S-SINGLE TW-ELEV. F-TW/HW DATA FILE s ' 2)ENTER: TW-ELEV 13.43 ROUND/ARCH PIPE INPUT CODING INFORMATION: ' PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5-CMP ARCH(NEW GEOMETRY) ' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING , TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH ' 15" 18"X 11" 17"X 13" * 42" 50"X 31" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" -25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" , 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: ' 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT , 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 76.00 24.00 1 9.98 11.31 6 , ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER:OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHARP-WEIR=2) 16.05 0 ' 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER:VELOCITY(fps)UPSTREAM ' 2.58 ------------------------------------------------------------------------------- ENTER: QMIN, QMAX,QINCRE,PRINT-OPT1ON(STANDARD=1,CONDENSED=2, EXPANDED=3) ' 6.90 7.10 .10 1 PIPE NO. 1: 76 LF-24"CP @ 1.75% OUTLET: 9.98 INLET: 11.31 INTYP: 6 , Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 6.90 2.19 13.50 * .012 .94 .63 3.45 3.45 2.19 2.18 1.21 Za 2.18 LI& * .012 .94 .64 3.45 3.45 2.18 2.17 1.22 RIM EL..= 16,05,O 7.10 2.18 13.49 * .012 .95 .64 3.45 3.45 2.18 2.18 1.23 , SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S-STOP f SPECIFY[d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: , bw2wt4.hw SPECIFY:R-REVISE,N-NEWJOB,F-FILE, S - STOP ' s 7 Stop-Program terminated. ' ' BASIN NORTH TRUNK SOUTH HALF(STA 15+50 0 31 6' LT TO STa 30+09 n 34 6' T Tl KING COUNTY DEPARTMENT OF PUBLIC WORKS ' Surface Water Management Division BACKWATER ANALYSIS PROGRAM ' Version 4.22 1 -INFO ON THIS PROGRAM t 2-BWCHAN 3-BWPIPE 4-BWCULV ' 5-BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD F-FILE k ENTER:NUMBER OF PIPES 4 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. i -TAILWATER DATA: 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S-SINGLE TW-ELEV. F-TW/HW DATA FILE s 2)ENTER: TW-ELEV 13.49 ------------------------------------------------------------------------------- ' "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" ' ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) , 4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ' TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH 15" 18"X I1" 17"X 13" * 42" 50"X 31" 49"X 33" , 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: , 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) , ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 141.00 24.00 1 11.31 11.48 6 ' ENTER JUNC NO. 1:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 16.38 .00 2.00 .04 ENTER PIPE#2:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ' 141.00 24.00 1 11.48 11.65 6 ENTER JUNC NO.2:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ' 16.81 .00 2.00 .04 ENTER PIPE#3:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE , 141.00 24.00 1 11.65 11.81 6 ENTER JUNC NO.3:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ' 17.25 .00 2.00 .04 ENTER PIPE#4:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 20.00 24.00 1 11.81 11.84 6 ' ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO.4-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ' 1)ENTER:OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHARP-WEIR=2) 17.32 0 , 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER:VELOCITY(fps)UPSTREAM ' .00 ------------------------------------------------------------------------------- ENTER: QMIN,QMAX, QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2, EXPANDED=3) ' 5.80 5.70 .10 1 ' PIPE NO. 1: 141 LF-24"CP @ .12% OUTLET: 11.31 INLET: 11.48 INTYP:6 JUNC NO. 1: OVERFLOW-EL: 16.3g BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .04 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* Q 2.11 13.59 * .012 .86 1.22 2.18 2.18 2.09 2.11 1.15 -QK PIPE NO.2: 141 LF-24"CP @ .12% OUTLET: 11.48 INLET: 11.65 INTYP: 6 ' JUNC NO.2: OVERFLOW-EL: 16 .l$.1$ BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .04 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* $ 2.04 13-6. * .012 .84 1.19 2.11 2.11 2.02 2.04 1.13 gg ' PIPE NO.3: 141 LF-24"CP @ .11% OUTLET: 11.65 INLET: 11.81 INTYP: 6 JUNC NO. 3: OVERFLOW-EL: 17.25 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .04 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 516 1.96 L3 71 * .012 .82 1.18 2.04 2.04 1.94 1.96 1.11 PIPE NO.4: 20 LF-24"CP @ .15% OUTLET: 11.81 INLET: 11.84 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI - ******************************************************************************* 516 1.99 13�83 * .012 .81 1.06 1.96 1.96 L94 1.99 1.12 RIM EL.._ 17 32 OK ' SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S -STOP f ' SPECIFY [d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.4: bw2nst4.hw SPECIFY:R-REVISE,N-NEWJOB,F-FILE, S - STOP ' s 7 Stop-Program terminated. BASIN ')NORTH TRUNK,NORTH HALF(STA 30+09.0,34.6'LT TO STA 47+00.0,3?5' RTl KING COUNTY DEPARTMENT OF PUBLIC WORKS Surface Water Management Division , BACKWATER ANALYSIS PROGRAM Version 4.22 1 -INFO ON THIS PROGRAM 2-BWCHAN ' 3-BWPIPE 4-BWCULV 5-BWBOX ' 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION 3 'BACKWATER COMPUTER PROGRAM FOR PIPES SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD ' F-FILE k ENTER: NUMBER OF PIPES I I') ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: , 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S-SINGLE TW-ELEV. , F-TW/HW DATA FILE s 2)ENTER:TW-ELEV 13.83 1 ------------------------------------------------------------------------------- "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" , ROUND/ARCH PIPE INPUT CODING INFORMATION: ' PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5-CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) ' ' 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE: ' EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH 15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" ' 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE ' 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE, INLET-IE,INLET-TYPE ' 117.00 24.00 1 11.84 11.98 6 ENTER JUNC NO. 1: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ' 17.68 .00 4.00 .06 ENTER PIPE#2:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 158.00 24.00 1 11.98 12.17 6 ENTER JUNC NO.2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 18.14 .00 4.00 .00 ENTER PIPE#3:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 205.00 24.00 1 12.17 12.41 6 ' ENTER JUNC NO.3: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 17.89 .00 4.00 .07 ENTER PIPE#4:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE, INLET-IE, INLET-TYPE 127.00 24.00 1 12.41 12.56 6 ENTER JUNC NO,4: OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft), Q-RATIO 17.50 .00 4.00 .07 ENTER PIPE#5:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ' 103.00 18.00 1 12.56 12.68 6 ENTER JUNC NO.5: OVERFLOW-ELEV, BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO ' 17.18 .00 2.00 .05 ENTER PIPE#6:LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE, INLET-IE, INLET-TYPE 126.00 18.00 1 12.68 12.83 6 ' ENTER JUNC NO. 6: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 16.80 .00 2.00 .06 ' ENTER PIPE#7:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 150.00 18.00 1 12.83 13.01 6 , ENTER JUNC NO.7: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ' 16.35 90.00 2.00 .05 ENTER PIPE#8:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 63.00 18.00 1 13.01 13.09 6 ' ENTER JUNC NO. 8: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO 16.33 90.00 2.00 .00 ENTER PIPE#9:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 177.00 18.00 1 13.09 13.30 6 ENTER JUNC NO.9:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO i 15.86 .00 2.00 .64 ENTER PIPE#10:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE ' 175.00 12.00 1 13.30 13.75 6 ENTER JUNC NO.10:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO , 16.85 .00 2.00 .31 ENTER PIPE#11:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ' 120.00 12.00 1 13.75 15.42 6 ENTER JUNC NO.11:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO 18.52 .00 2.00 1.27 ENTER PIPE#12:LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE 194.00 12.00 1 15.42 19.81 6 ' ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO.12-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: , 1)ENTER:OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHARP-WEIR=2) 22.91 0 ' 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER:VELOCITY(fps)UPSTREAM ' .00 ------------------------------------------------------------------------------- ENTER: QMIN,QMAX,QINCRE, PRINT-OPTION(STANDARD=1,CONDENSED=2, EXPANDED=3) , 5.10 4.90 .10 1 PIPE NO. 1: 117 LF-24"CP @ .12% OUTLET: 11.84 INLET: 11.98 INTYP: 6 JUNC NO. 1: OVERFLOW-EL: JLo BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .06 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI , J0 1.92 LIM * .012 .80 1.12 1.99 1.99 1.90 1.92 1.08 QK PIPE N0.2: 158 LF-24"CP @ .12% OUTLET: 11.98 INLET: 12.17 INTYP:6 ' JUNC NO.2: OVERFLOW-EL: 18.14 BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .00 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4M 1.79 13 9 * .012 .78 1.08 1.92 1.92 1.78 1.79 1.04 QK ' PIPE NO.3: 205 LF-24"CP @ .12% OUTLET: 12.17 INLET: 12.41 INTYP: 6 JUNC NO. 3: OVERFLOW-EL: 1= BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .07 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4$ 1.66 14.0'7 * .012 .78 1.09 1.79 1.79 1.63 1.66 1.05 � ' PIPE NO.4: 127 LF-24"CP @ .12% OUTLET: 12.41 INLET: 12.56 INTYP: 6 JUNC NO.4: OVERFLOW-EL: 17.50 BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .07 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4�5Q 1.55 14.11 * .012 .75 1.04 1.66 1.66 1.55 1.52 .96 OK ' PIPE NO.5: 10 3 LF- 18"CP @ .12% OUTLET: 12.56 INLET: 12.68 INTYP: 6 ' JUNC NO.5: OVERFLOW-EL: 17.18 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .05 Q(CFS) HW(FT) HW ELEV. *N FAC DC DN TW DO DE HWO HWI ******************************************************************************* ,4Q 1.60 14.2g * .012 .79 1.50 1.55 1.55 1.57 1.60 1.07 -QK ' PIPE NO.6: 126 LF- 18"CP @ .12% OUTLET: 12.68 INLET: 12.83 INTYP: 6 JUNC NO.6: OVERFLOW-EL: 16.80 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .06 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI 4M 1.64 AZ * .012 .77 1.26 1.60 1.60 1.61 1.64 1.04 UK PIPE NO.7: 150 LF- 18"CP @ .12% OUTLET: 12.83 INLET: 13.01 INTYP: 6 JUNC NO.7: OVERFLOW-EL: 16.35 BEND:90 DEG DIA/WIDTH: 2.0 Q-RATIO: .05 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 3�$ 1.74 14.75 * .012 .75 1.18 1.64 1.64 1.63 1.74 1.09 gox PIPE NO. 8: 63 LF- 18"CP @ .13% OUTLET: 13.01 INLET: 13.09 INTYP: 6 JUNC NO, 8: OVERFLOW-EL: 16.33 BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: .00 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI 4 1.83 14.92 * .012 .73 1.10 1.74 1.74 1.73 1.83 1.06 PIPE NO.9: 177 LF- 18"CP @ .12% OUTLET: 13.09 INLET: 13.30 INTYP: 6 ' JUNC NO.9: OVERFLOW-EL: 15.g6 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .64 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* ,¢Q 1.81 15.11 * .012 .73 1.14 1.83 1.83 1.80 1.81 .97 QK PIPE NO.10: 175 LF- 12"CP @ .26% OUTLET: 13.30 INLET: 13.75 INTYP: 6 ' JUNC NO.10: OVERFLOW-EL: 16.85 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .31 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ' ******************************************************************************* 2.01 15.76 * .012 .64 1.00 1.81 1.81 1.92 2.01 .91 PIPE NO.11: 120 LF- 12"CP @ 1.39% OUTLET: 13.75 INLET: 15.42 INTYP: 6 JUNC NO.11: OVERFLOW-EL: BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: 1.27 , Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI .81 16.23 * .012 .55 .42 2.01 2.01 .60 .81 .80 PIPE NO.12: 194 LF- 12"CP @ 2.26% OUTLET: 15.42 INLET: 19.81 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI 74 .49 20.30 * .012 .36 .25 .81 .81 .36 ***** .49 RIM EL..=22,21,QK SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP f ' SPECIFY [d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.12: bw2nnt4.hw ' SPECIFY:R- REVISE,N-NEWJOB,F-FILE, S - STOP s 7 Stop-Program terminated. BASIN 2 SOUTH TRUNK(STA 25+50.11.31.6' L.T TO STA 21+50.0.3?5' T Tl KING COUNTY DEPARTMENT OF PUBLIC WORKS ' Surface Water Management Division BACKWATER ANALYSIS PROGRAM Version 4.22 1 -INFO ON THIS PROGRAM 2-BWCHAN 3-BWPIPE 4-BWCULV 5-BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS ENTER OPTION ' 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD F-FILE k ' ENTER: NUMBER OF PIPES 3 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: ' 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S-SINGLE TW-ELEV. F-TW/HW DATA FILE s ' 2)ENTER:TW-ELEV 13.42 ------ ------------------------------------------------------------------------- ' "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" ' ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5-CMP ARCH(NEW GEOMETRY) ' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ' TABLE: EQUN-DIAM. OLD-ARCH NEW-ARCH * EQUN-DIAM. OLD-ARCH NEW-ARCH ' 15" 18"X II" 17"X 13" * 42" 50"X 3 1" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" ' 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43°X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: ' 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ' ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 147.00 12.00 1 12.31 13.07 6 ' ENTER JUNC NO. 1: OVERFLOW-ELEV, BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO 16.49 .00 2.00 .49 ENTER PIPE#2:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE , 138.00 12.00 1 13.07 13.77 6 ENTER JUNC NO. 2: OVERFLOW-ELEV, BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO , 17.19 .00 2.00 .76 ENTER PIPE#3:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ' 108.00 12.00 1 13.77 14.32 6 --------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 3-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: 1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2) ' 17.74 0 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A ' s 3)ENTER: VELOCITY(fps)UPSTREAM .00 ' ------------------------------------------------------------------------------- ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2, ' EXPANDED=3) 1.60 1.80 .10 1 PIPE NO. 1: 147 LF- 12"CP @ .52% OUTLET: 12.31 INLET: 13.07 INTYP: 6 ' JUNC NO. l: OVERFLOW-EL: lbA2 BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .49 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.60 .81 13.88 * .012 .54 .55 1.18 1.18 .69 .81 .76 ' 1.70 .84 13.91 * .012 .56 .57 1.18 1.18 .71 .84 .79 1& .87 11% * .012 .58 .59 1.18 1.18 .74 .87 .82 VA ' PIPE NO.2: 138 LF- 12"CP @ .51% OUTLET: 13.07 INLET: 13.77 INTYP:6 JUNC NO.2: OVERFLOW-EL: 1= BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .76 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.07 .63 14.40 * .012 .44 .44 .81 .81 .44 .63 .61 1.14 .65 14.42 * .012 .45 .45 .84 .84 .45 .65 .63 1= .67 14.44 * .012 .47 .47 .87 .87 .47 .67 .65 QK PIPE NO.3: 108 LF- 12"CP @ .51% OUTLET: 13.77 INLET: 14.32 INTYP: 6 Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI .61 .45 14.77 * .012 .33 .32 .63 .63 .33 ***** .45 .65 .48 14.80 * .012 .34 .34 .65 .65 .34 .48 .46 ' 12 .50 14.82 * .012 .35 .35 .67 .67 .35 .50 .48 RIM EL, =17.74.O SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S-STOP f SPECIFY[d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.3: bw2st4.hw ' SPECIFY:R-REVISE,N-NEWJOB,F-FILE,S-STOP s ' 7 Stop- Program terminated. ' OAKESDALE AVENUE S.W. EXTENSION Surface Water Technical Information Report Prep'd By: KRS Phase 1 A-S.W.27th St.to S.W. 16th St. Conveyance System Analysis and Sizing Checked By: SSS ' Run Date: 9/24/97 Basin: 3-Trunk Main ' Given: R=;100--year PR='3.92 aR 2.61 bR=;0.630 Sum IRim Info. Pipe and CB Info. Backwater Data Pipe Location x x p Sub Basin Number Area C C A C A T iR IR QR Pipe Typ.n Slope 0. V. VR L T, CL Elev. Fall Rim Elev. D/S I.E. U/S I.E. Max.Depth CB Max.Diam. Min.Cover delta Q trunk Q Ratio dQ/tQ From To ac. min. c.f.s. in. ft./ft. c.f.s. f. .s. f. .s. ft. min. ft. ft. ft. ft. ft. ft. in. ft. c.f.s. c.f.s. 50+30.0 Lt 32.5' 50+90.0 Lt 32.5' a3577 0.900 0.32i a3219 i 6.30 0.819 3.211 1.033 12 0.014 0.022545 j 4.981 6.341 4.99 15510.184 22.960 -1.32 21.64! 18.54 n/a 3.10 1 12 2.00 j ' Sum=' 0.3577; 6.48 51+95.0 Lt 32.5' 50+90.0 Lt 32.5' 0.3012 a900 0.27! a27'1 6.30-1 0.819 3.21 0.870 12 a014 0.003061 1.841 2.34! 2.301 98'0.7101 1 1&391 15.80 Wa.1 2.591 11 12! 1.491 Sum I0.3012 7.01 j 50+90.0 Lt 32.5' j Wet Vault 0.1129 0.900 0.101 a69461 7.03 0.764I 2.991 2.080 12 0.014 I alawl 12.541 15.96'' 11.80' 1410.0201 21.4601 -1.061 20.401 15.50! 15.501 4.901 1 12'i 3.80! Sum=' a7718 7.05', Wet Vault Ex. CB a6946 7.05 0.76312.99! 2.076: 12! a014 0.020755 4.781 6.08' 5.87 5310.150i 1 15.501 15.501 1 ' Kato&Warren, Inc. RM3T1002.XLS Page 1 of 1 BASIN 3 W .T YA1111 O TEA L(STA 52+20_8_34' T T TOW T YAIJT,Tl KING COUNTY DEPARTMENT OF PUBLIC WORKS ' Surface Water Management Division BACKWATER ANALYSIS PROGRAM Version 4.22 1 -INFO ON THIS PROGRAM 2- BWCHAN 3-BWPIPE 4-BWCULV 5 -BWBOX ' 6-DATA-FILE ROUTINES 7-RETURN TO DOS ' ENTER OPTION 3 ' BACKWATER COMPUTER PROGRAM FOR PIPES SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD F-FILE k ENTER:NUMBER OF PIPES ' 1 ------------------------------------------------------------------------------- ' OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S-SINGLE TW-ELEV. ' F-TW/HW DATA FILE s 2)ENTER: TW-ELEV 14.40, CONSERVATIVE ASSUMPTION ROUND/ARCH PIPE INPUT CODING INFORMATION: ' PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) ' 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) 4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ' TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH , 15" 18"X I I" 17"X 13" * 42" 50"X 31" 49"X 33" 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" ' 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: , 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE 2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT ' 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE 53.00 12.00 1 14.40 15.50 6 1 ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: , 1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHARP-WEIR=2) 19.17 0 1 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM V-VARY VELOCITY ACCORDING TO V=Q/A 3)ENTER:VELOCITY(fps)UPSTREAM , .00 ------------------------------------------------------------------------------- ENTER:QMIN,QMAX,QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2, EXPANDED=3) ' 2.00 2.10 .10 1 PIPE NO. 1: 53 LF- 12"CP @ 2.08% OUTLET: 14.40 INLET: 15.50 IN'IYP:6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI 2.00 .90 16.40 * .012 .61 .42 .00 .42 .61 ***** .90 22a .93 16,4. * .012 .62 .43 .00 .43 .62 ***** .93 RIM EL..= 19.17. OK SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S -STOP 1 f SPECIFY[d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. I: ' bw3wv2.hw SPECIFY:R-REVISE,N-NEWJOB,F-FILE,S-STOP s 7 Stop-Program terminated. i 1 ' BASIN 3 NORTH TRUNK(YET VAULT TO STA 51+95.0,22dLL.TJ KING COUNTY DEPARTMENT OF PUBLIC WORKS Surface Water Management Division BACKWATER ANALYSIS PROGRAM Version 4.22 1 -INFO ON THIS PROGRAM ' 2-BWCHAN 3 -BWPIPE 4-BWCULV ' 5 -BWBOX 6-DATA-FILE ROUTINES 7-RETURN TO DOS t ENTER OPTION ' 3 BACKWATER COMPUTER PROGRAM FOR PIPES ' SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD F-FILE k ' ENTER: NUMBER OF PIPES 2 ------------------------------------------------------------------------------- OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA: ' 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S - SINGLE TW-ELEV. F-TW/HW DATA FILE s 2)ENTER: TW-ELEV ' 16-43 ------------------------------------------------------------------------------- ' "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK" ' ROUND/ARCH PIPE INPUT CODING INFORMATION: PIPE TYPE CODING: 1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY) ' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) , 4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac) ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE: EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH 15" 18"X 11" 17"X 13" * 42" 50"X 31" 49"X 33" ' 18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38" 21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43" 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" ' 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" 36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57" INLET TYPE CODING: ' 1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10- OTHER(SEE 2-CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT 3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ' ENTER PIPE# 1: LENGTH(ft), DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE 14.00 12.00 1 13.50 15.50 6 ENTER JUNC NO. 1: OVERFLOW-ELEV, BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q RATIO 20.40 90.00 2.00 1.39 ENTER PIPE#2: LENGTH(ft),DIA(in), PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE ' 98.00 12.00 1 15.50 15.80 6 ------------------------------------------------------------------------------- INFLOW CONDITIONS PIPE NO. 2-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: 1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2) ' 18.39 0 2)SPECIFY TYPE OF VELOCITY DATA INPUT: S - SINGLE VELOCITY UPSTREAM , V-VARY VELOCITY ACCORDING TO V=Q/A s 3)ENTER:VELOCITY(fps)UPSTREAM .00 ' ------------------------------------------------------------------------------- ENTER: QMIN,QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2, ' EXPANDED=3) 1.90 2.10 .10 1 PIPE NO. 1: 14 LF- 12"CP @ 14.29% OUTLET: 13.50 INLET: 15.50 INTYP: 6 JUNC NO. 1: OVERFLOW-EL: 2aa BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: 1.39 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.90 .82 16.32 * .012 .59 .25 2.93 2.93 .59 ***** .82 , 2.00 .85 16.35 * .012 .61 .26 2.93 2.93 .61 ***** .85 21Q .89 16-3 * .012 .62 .26 2.93 2.93 .62 ***** .89 OK PIPE NO. 2: 98 LF- 12"CP @ .31% OUTLET: 15.50 INLET: 15.80 INTYP: 6 ' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* .79 .63 16.43 * .012 .38 .43 .82 .82 .58 .63 .52 ' .84 .66 16.46 * .012 .39 .44 .85 .85 .61 .66 .53 M .69 16.49 * .012 .40 .45 .89 .89 .64 .69 .55 RIM EL=18."9.OK ' SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP f SPECIFY [d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 2: ' bw3nt2.hw SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP ' s 7 Stop-Program terminated.